Comments on: ADHD and Autism http://www.bayesianinvestor.com/blog/index.php/2010/04/02/adhd-and-autism/ Ramblings of a somewhat libertarian stock market speculator Tue, 14 May 2013 17:01:32 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: Halvorson http://www.bayesianinvestor.com/blog/index.php/2010/04/02/adhd-and-autism/comment-page-1/#comment-43435 Halvorson Sun, 04 Apr 2010 22:18:47 +0000 http://www.bayesianinvestor.com/blog/?p=340#comment-43435 In a study Ramachandran & co did a while back, they measured the skin conductance rates (as a proxy for amygdala activity) of autistic children while they looked at faces and performed self stimulatory activities. Their main finding was that SCRs are abnormally high and variable in most autistic children. However, a minority of the subjects (4 out of 37) showed almost non-existent SCR levels; the only way they were able to really "feel" anything was through extreme, self injurious behavior. It sounds like kids in this subtype of autism might qualify for a diagnosis of ADHD. http://cbc.ucsd.edu/pdf/Autism_Roy_Soc_01.pdf In a study Ramachandran & co did a while back, they measured the skin conductance rates (as a proxy for amygdala activity) of autistic children while they looked at faces and performed self stimulatory activities. Their main finding was that SCRs are abnormally high and variable in most autistic children. However, a minority of the subjects (4 out of 37) showed almost non-existent SCR levels; the only way they were able to really “feel” anything was through extreme, self injurious behavior. It sounds like kids in this subtype of autism might qualify for a diagnosis of ADHD.

http://cbc.ucsd.edu/pdf/Autism_Roy_Soc_01.pdf

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